New starter, flywheels are less likely to wear out than starters are.

Try loosening the bolts again and making sure the starter is in place. It could be slightly angled and its having trouble engaging to the flywheel.
SS

ok i'll try that now

i changed the washer and added two and it was a little rough, so i put the charger on it and it started fine, so im gonna pick up a new battery. what battery would you recomend i buy?